Vachellia guanacastensis (H.D.Clarke, Seigler & Ebinger) Seigler & Ebinger, Phytologia 87(3): 159. 2006 sec. Seigler, D. S. & Ebinger, J. E.: New combinations in the genus Vachellia (Fabaceae: Mimosoideae) from the New World. – Phytologia 87(3): 139–178
- ≡Acacia farnesiana var. guanacastensis H.D.Clarke, Seigler & Ebinger, Syst. Bot. 14: 562 (-563). 1989 syn. sec. Rico 2007